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I upgraded to Ubuntu 12.04 and now the wireless network card D-Link DWA-125 doesn't work. I have the drivers from the official website, But neither recognized during installation.

iwconfig: 
lo        no wireless extensions.

vmnet8    no wireless extensions.

ra0       Ralink STA  
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  invalid crypt:0  invalid misc:0

eth0      no wireless extensions.

vmnet1    no wireless extensions.

dava@Dava-Ubuntu:~$ lsusb 


Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 006: ID 07d1:3c0d D-Link System DWA-125 Wireless N 150 Adapter(rev.A1) [Ralink RT3070]

And the chipset: ralink 2870/3070 (rt3070)

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Can you install the linux-non-free firmware and tell us if it works? also compat-wireless, –  mac1133 May 4 '12 at 15:48
    
What chipset does your card have? Run "sudo lspci -v" to find out. –  Tim May 4 '12 at 21:08
    
This is the name of the driver in the official page 2009_1204_RT3070_Linux_STA_v2.1.2.0 –  dava2788 May 5 '12 at 19:41
    
Thank for your answer. But I already try this solution, and doesn't work. I use the kernel 3.2.0-24-generic. –  user61137 May 6 '12 at 21:28

2 Answers 2

This is instruction for Ubuntu 11.10 but it works for Ubuntu 12.04 too: http://kaustav.codebinders.com/2011/10/install-dwa-125-wireless-driver-on-ubuntu-11-10.html .

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3  
Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. –  fossfreedom May 7 '12 at 9:06

The solution mentioned in http://kaustav.codebinders.com/2011/10/install-dwa-125-wireless-driver-on-ubuntu-11-10.html works very well on 12.04. The only problem is that I have to go through the entire procedure after every restart as following restart, the device is not recognized.

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Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. –  Alaa Ali Sep 26 '13 at 17:28

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